rabbitmq的部署与java操作

1.docker部署rabbitmq

docker pull rabbitmq:3.7.7-management

docker run -d --name rabbitmq3.7.7 -p 5672:5672 -p 15672:15672  --hostname myRabbit -e RABBITMQ_DEFAULT_VHOST=my_vhost -e RABBITMQ_DEFAULT_USER=admin -e RABBITMQ_DEFAULT_PASS=admin rabbitmq:3.7.7-management

说明：

-d 后台运行容器；

–name 指定容器名；

-p 指定服务运行的端口（5672：应用访问端口；15672：控制台Web端口号）；

-v 映射目录或文件；

–hostname 主机名（RabbitMQ的一个重要注意事项是它根据所谓的 “节点名称” 存储数据，默认为主机名）；

-e 指定环境变量；（RABBITMQ_DEFAULT_VHOST：默认虚拟机名；RABBITMQ_DEFAULT_USER：默认的用户名；RABBITMQ_DEFAULT_PASS：默认用户名的密码）

可以使用浏览器打开web管理端：http://Server-IP:15672

2.引入依赖

<dependency>
            <groupId>com.rabbitmq</groupId>
            <artifactId>amqp-client</artifactId>
            <version>5.7.3</version>
        </dependency>

3.java 操作

3.1 配置类ConnectionUtils

import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * @Auther: liuysh
 * @Date: 2021/2/2 22:48
 * @Description:
 */
public class ConnectionUtils {
    public static Connection getConnection() throws TimeoutException, IOException {

        ConnectionFactory factory = new ConnectionFactory();

        factory.setHost("你的ip");

        factory.setPort(5672);

        factory.setVirtualHost("test");

        factory.setUsername("test");

        factory.setPassword("test");

        return factory.newConnection();
    }
}

3.2 生产者SendSms

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
/**
 * @Auther: liuysh
 * @Date: 2021/2/2 22:49
 * @Description:
 */
public class SendSms {
    private static final String QUEUE_NAME = "simple_queue";

    public static void main(String[] args) {
        Connection connection = null;
        Channel channel = null;
        try {
            connection = ConnectionUtils.getConnection();
            channel = connection.createChannel();
            channel.queueDeclare(QUEUE_NAME,false,false,false,null);
            String msg = "hello rabbitmq : " + System.currentTimeMillis();
            channel.basicPublish("",QUEUE_NAME,null,msg.getBytes());
            System.out.println("send msg to rabbitmq:" + msg );
        } catch (Exception e ) {
            e.printStackTrace();
        } finally {
            try {
                channel.close();
                connection.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}

3.3 消费者ReceiveSms

import com.rabbitmq.client.*;

import java.io.IOException;
/**
 * @Auther: liuysh
 * @Date: 2021/2/2 22:14
 * @Description:
 */
public class ReceiveSms {
    private static final String QUEUE_NAME = "simple_queue";

    public static void main(String[] args) {
        Connection connection = null;
        Channel channel = null;
        try {
            connection = ConnectionUtils.getConnection();
            channel = connection.createChannel();
            channel.queueDeclare(QUEUE_NAME,false,false,false,null);
            DefaultConsumer consumer =  new DefaultConsumer(channel){
                //一旦有消息进入队列就会触发
                @Override
                public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                    String msg = new String (body,"utf-8");
                    System.out.println("receive msg :" + msg);
                }
            };
            //监听队列
            channel.basicConsume(QUEUE_NAME,true,consumer);

        } catch (Exception e ) {
            e.printStackTrace();
        }
    }

}